C11112331312111112111133133313331333133313331333133313331333132233112323221   >>    C1111233131211111211113313331333133313331333133313331333133313223311232322   <<    C11112331312111112111133133313331333133313331333133313331333132233112323223   >>      C11112331312111112111133133313331333133313331333133313331333132233112323222   >>